Methods, apparatuses, system, related computer program product for handover procedures

摘要

It is disclosed methods, apparatuses, system and related computer program for handover procedures. The method comprises a network node verifying if a location area of a handover destination belongs to a zone wherein a subscriber is allowed to access services and based on such verification either successfully handing over a call or rejecting a handover request.

主权项

1. A method comprising:
storing a mapping of zone identities and location areas; receiving from a first mobile services switching center a handover requisition message for a subscriber at a second mobile services switching center, the message comprising information relating to a location area of a handover destination and comprising at least one of a list of zone identities indicating zones wherein the subscriber is allowed to access services and a list of zone identities indicating zones wherein the subscriber is not allowed to access services, wherein the handover requisition message is a request for handover of a service being provided by the second mobile services switching center to the first mobile services switching center so that the service can be provided by the first mobile services switching center; verifying by the second mobile services switching center if the location area of the handover destination belongs to a zone wherein the subscriber is allowed to access services; and sending a first resultant message and a second resultant message based on a result of the verifying by the second core network entity, wherein if the result of the verifying is positive, sending the first resultant message, and wherein if the result of the verifying is negative, sending the second resultant message.